A police officer in riot gear walks past people at a bus stop in central Belfast January 5, 2013. Northern Irish police came under attack by pro-British loyalists on Friday as the province's first minister branded rioters "a disgrace" and said they were playing into the hands of rival militant nationalists. Rioting began a month ago after a vote by mostly nationalist pro-Irish councilors to end the century-old tradition of flying the British flag from Belfast City Hall every day unleashed the most sustained period of violence in the city for years. REUTERS/Cathal McNaughton